JST to SST time converter

SST is 20 hours behind JST. When it is 9:00 AM in JST, it is 1:00 PM (Fri, Oct 16) in SST.

JST UTC+9

Saturday, October 17, 2026

SST UTC-11

Friday, October 16, 2026

JST
Japan Standard Time
Sat, Oct 17
UTC+9
SST
Samoa Standard Time
Fri, Oct 16
UTC-11-20h
Finding your time zone…
Shared working hours (9:00–18:00)

JST to SST conversion table

Every hour of today in JST and the matching time in SST. Light rows are typical working hours (9:00–18:00).

JSTSST
12:00 AM4:00 AM−1 day
1:00 AM5:00 AM−1 day
2:00 AM6:00 AM−1 day
3:00 AM7:00 AM−1 day
4:00 AM8:00 AM−1 day
5:00 AM9:00 AM−1 day
6:00 AM10:00 AM−1 day
7:00 AM11:00 AM−1 day
8:00 AM12:00 PM−1 day
9:00 AM1:00 PM−1 day
10:00 AM2:00 PM−1 day
11:00 AM3:00 PM−1 day
12:00 PM4:00 PM−1 day
1:00 PM5:00 PM−1 day
2:00 PM6:00 PM−1 day
3:00 PM7:00 PM−1 day
4:00 PM8:00 PM−1 day
5:00 PM9:00 PM−1 day
6:00 PM10:00 PM−1 day
7:00 PM11:00 PM−1 day
8:00 PM12:00 AM
9:00 PM1:00 AM
10:00 PM2:00 AM
11:00 PM3:00 AM

Best time to call or meet

Both sides are at work from 9:00 AM – 2:00 PM in JST (1:00 PM – 6:00 PM in SST).

Daylight saving time and the difference

The difference stays 20 hours all year.

More conversions

SST to JSTJST to UTCJST to GMTJST to ESTJST to CSTJST to MSTJST to PSTJST to CETJST to MSKJST to GSTJST to PKTJST to ISTJST to SGT
UTC to SSTGMT to SSTEST to SSTCST to SSTMST to SSTPST to SSTCET to SSTMSK to SSTGST to SSTPKT to SSTIST to SSTSGT to SST

Questions and answers

What is the time difference between JST and SST?

SST is 20 hours behind JST.

What time is it in SST when it is 9 AM in JST?

When it is 9:00 AM in JST, it is 1:00 PM (Fri, Oct 16) in SST.

When is the best time to call SST from JST?

Both sides are at work from 9:00 AM – 2:00 PM in JST (1:00 PM – 6:00 PM in SST).

Does the time difference between JST and SST change?

No. The difference stays 20 hours all year.